He adds that in a time of global economic crisis, Russia needs to consider the need to keep such a large force in Chechnya.

VOA: standard.2009.03.26

it's unfair for developed countries to force them to participate in anti-global warming activities.

发达国家强迫他们参与对抗全球气候变暖的活动是不公平的，

全球变暖与国力 - SpeakingMax英语口语达人

it's unfair for developed countries to force them to participate in anti-global warming activities.

发达国家强迫他们参与对抗全球气候变暖的活动是不公平的，

全球变暖与国力 - SpeakingMax英语口语达人